Impact of carbon particle size and pressure drop of the CelFX™ Matrix Technology Section on carbonyl reduction at constant total cigarette pressure drop
The CelFX™ advanced filtration platform utilizes a binder and activated carbon to efficiently filter cigarette smoke. Previous studies have demonstrated the role of activated carbon in reduction of many vapor phase components including various carbonyls. CelFX™ based filters have a much better carbonyl removal efficiency compared to conventional carbon filters. In this study, we show the impact of both activated carbon particle size (30 × 70 to 12 × 40 mesh) and pressure drop of CelFX™ segment (1.3 to 4.2 mm of H2O/mm of segment) on carbonyl removal efficiency at constant total filter pressure drop. The ISO 3308 smoking protocol was used but the ventilation holes were blocked.